Hey Mr. Michael: do you have the directive Prefer Mounted Volumes = no? This seems to provoke this behavior, and actually is not very recommended at this time to use it.
De: "Michael Schwager" <mschwager AT mochotrading DOT com>
Para: bacula-users AT lists.sourceforge DOT net
Enviadas: Segunda-feira, 24 de novembro de 2014 17:27:00
Assunto: [Bacula-users] How Bacula Chooses a tape in the pool to write to
Hello,
I noticed that Bacula seems to be writing to tapes in a way that I don't understand. If there are two tapes in an autochanger and they are in the same pool, bacula writes to them both. I would expect it to fill a tape and then start on the next one.
For example, we have:
Pool: Tape
+---------+------------+-----------+---------+-----------------+----------+--------------+---------+------+-----------+-----------+---------------------+
| MediaId | VolumeName | VolStatus | Enabled | VolBytes | VolFiles | VolRetention | Recycle | Slot | InChanger | MediaType | LastWritten |
+---------+------------+-----------+---------+-----------------+----------+--------------+---------+------+-----------+-----------+---------------------+
| 16 | EPW680L3 | Full | 1 | 682,622,760,960 | 198 | 31,536,000 | 0 | 0 | 0 | LTO-3 | 2014-11-15 11:45:33 |
| 17 | EPW681L3 | Append | 1 | 75,587,355,648 | 22 | 31,536,000 | 0 | 7 | 1 | LTO-3 | 2014-11-18 09:40:27 |
| 23 | EPW682L3 | Append | 1 | 194,428,523,520 | 56 | 31,536,000 | 0 | 6 | 1 | LTO-3 | 2014-11-23 00:03:19 |
+---------+------------+-----------+---------+-----------------+----------+--------------+---------+------+-----------+-----------+---------------------+
If the tape could hold up to 680 G or so, why has it written 75G to one Appendable tape, and 194G to the other?
Thanks.
- Mike Schwager
Linux Network Engineer, Mocho Trading LLC
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